EP2942371A1 - Wax expansion material - Google Patents
Wax expansion material Download PDFInfo
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- EP2942371A1 EP2942371A1 EP15165758.2A EP15165758A EP2942371A1 EP 2942371 A1 EP2942371 A1 EP 2942371A1 EP 15165758 A EP15165758 A EP 15165758A EP 2942371 A1 EP2942371 A1 EP 2942371A1
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- Prior art keywords
- wax
- filler
- graphite
- weight
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/046—Carbon nanorods, nanowires, nanoplatelets or nanofibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2391/06—Waxes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Definitions
- the present invention relates to a Wachsdehnstoff, in particular for the temperature-dependent control of a valve in a heating / cooling circuit.
- the invention also relates to a process for the preparation of such wax wax.
- Wachsdehnscher have long been known for self-regulating control of heating / cooling circuits and are used for example in valve devices to open the valve body temperature dependent or close.
- a wax expansion element is provided for controlling the valve, which consists of a can, a translationally adjustable working piston and the wax expansion substance.
- a material-dependent phase transition takes place, in which the Wachsdehnstoff undergoes a significant change in volume, which in turn causes a movement of the piston, which is connected to the valve body, so that in a piston movement, the valve is opened more or more closed.
- a spring mechanism is provided to reset the piston.
- the present invention therefore deals with the problem of providing an improved Wachsdehnstoff, by means of which in particular a reaction and thus switching time influenced, in particular significantly shortened, can be.
- the present invention is based on the general idea to provide a Wachsanzehnstoff having at least two wax components, as well as at least one filler which allows due to its higher thermal conductivity a faster switching time of equipped with such a wax expansion thermostatic valve.
- a filler for example, copper, aluminum, aluminum oxide or graphite can be used, which significantly accelerate the temperature changes and thus cause a faster and more uniform volume change of the wax components, so that significantly influenced by a corresponding admixture of a filler content, the reaction time of the wax expansion according to the invention, in particular significantly reduced can be.
- graphite expanded graphite can be used, as well as any other type of carbon fibers.
- Expanded graphite for example, is not only lightweight, but also has excellent thermal conductivity, which can provide a fast response of the wax wax.
- the expanded graphite may be in the form of graphite powder or in the form of fibers.
- the choice of filler influences the reaction time of the wax wax.
- the filler is embedded as homogeneously as possible with the wax components and wetted by them. Just As a result, with a corresponding change in temperature, a homogeneous, that is to say uniform, volume change and thus precise control of the valve are possible.
- the filler has copper, for example. Copper has excellent thermal conductivity, which is above the thermal conductivity of aluminum oxide and its thermal expansion coefficient below the coefficient of thermal expansion of aluminum.
- copper has excellent thermal conductivity, which is above the thermal conductivity of aluminum oxide and its thermal expansion coefficient below the coefficient of thermal expansion of aluminum.
- the reaction rate of the Wachsdehnschers can be influenced.
- the amount of each filler added plays a role in this case.
- the wax expansion substance contains between 35 and 55% by weight of expanded graphite.
- the two wax components can be present in any ratio.
- the first wax component may have short chain alkanes with a low melting point of about 40 ° C, whereas the second wax component has long chain alkanes with a high melting point of about 87 ° C. Due to the individual mixture of the various wax components, in particular the start of stroke is individually adjustable, so that it can be adapted to customer requirements.
- the invention is further based on the general idea to produce the previously described Wachsdehnstoff by means of an extrusion process, in which the components of the Wachsdehnschers mixed and at least temporarily tempered, in particular heated.
- an extrusion process in which the wax components and the at least one filler are extremely effectively and homogeneously mixed together, a kneading Consistency can be achieved, which does not separate automatically even with prolonged storage time. Due to the special extrusion process, a higher proportion of filler can be processed than, for example, in the dispersion process.
- a reinforcing filler for example an inorganic oxygen-containing reinforcing filler
- a reinforcing filler prevents settling of the filler, in particular of aluminum oxide, regardless of the state of aggregation of the wax components, whereby the homogeneity of the wax expansion agent according to the invention over the life can be improved.
- Optimum homogeneity ensures a later optimal reaction of the wax expansion agent to changes in temperature and a calculable switching behavior of a thermostatic valve equipped therewith.
Abstract
Die Erfindung betrifft einen Wachsdehnstoff, insbesondere zur temperaturabhängigen Steuerung eines Ventils in einem Kühlkreislauf, mit folgenden Bestandteilen, zumindest zwei Wachskomponenten und zumindest einem Füllstoff. Hierdurch können die Reaktionszeit des Wachsdehnstoffes und die Schaltzeiten gezielt beeinflusst, insbesondere deutlich reduziert werden.The invention relates to a Wachsdehnstoff, in particular for the temperature-dependent control of a valve in a cooling circuit, with the following constituents, at least two wax components and at least one filler. As a result, the reaction time of the Wachsdehnstoffes and the switching times can be specifically influenced, in particular significantly reduced.
Description
Die vorliegende Erfindung betrifft einen Wachsdehnstoff, insbesondere zur temperaturabhängigen Steuerung eines Ventils in einem Heiz-/Kühlkreislauf. Die Erfindung betrifft außerdem ein Verfahren zur Herstellung eines derartigen Wachsdehnstoffes.The present invention relates to a Wachsdehnstoff, in particular for the temperature-dependent control of a valve in a heating / cooling circuit. The invention also relates to a process for the preparation of such wax wax.
Wachsdehnstoffe sind seit längerem zur selbstregulierenden Steuerung von Heiz-/Kühlkreisläufen bekannt und werden beispielsweise in Ventileinrichtungen eingesetzt, um den Ventilkörper temperaturabhängig zu öffnen bzw. zu schließen. In der Regel ist dabei zur Steuerung des Ventils ein Wachsdehnstoffelement vorgesehen, welches aus einer Dose, einem darin translatorisch verstellbaren Arbeitskolben sowie dem Wachsdehnstoff besteht. Durch Temperaturänderung findet ein materialabhängiger Phasenübergang statt, bei welchem der Wachsdehnstoff eine signifikante Volumenänderung erfährt, die wiederum eine Bewegung des Kolbens bewirkt, der mit dem Ventilkörper verbunden ist, so dass bei einer Kolbenbewegung das Ventil mehr geöffnet oder mehr geschlossen wird. Zur Rückstellung des Kolbens ist üblicherweise ein Federmechanismus vorgesehen. Durch die Mischung verschiedener niedriger bis hochschmelzender Wachskomponenten kann über einen entsprechenden Temperaturbereich ein zugehöriger Hubbereich definiert werden. Die Temperatur für den Beginn der Hubentfaltung wird dabei durch die jeweils verwendeten Wachskomponenten vorgegeben. Selbstverständlich ist der Einsatz derartiger Wachsdehnelemente nicht nur auf Kühlkreisläufe in Kraftfahrzeugen beschränkt, sondern ist beispielsweise auch bei anderen Thermostatventilen, wie beispielsweise an einem Heizkörper, zu finden.Wachsdehnstoffe have long been known for self-regulating control of heating / cooling circuits and are used for example in valve devices to open the valve body temperature dependent or close. As a rule, a wax expansion element is provided for controlling the valve, which consists of a can, a translationally adjustable working piston and the wax expansion substance. By temperature change, a material-dependent phase transition takes place, in which the Wachsdehnstoff undergoes a significant change in volume, which in turn causes a movement of the piston, which is connected to the valve body, so that in a piston movement, the valve is opened more or more closed. To reset the piston usually a spring mechanism is provided. By mixing different low to high melting wax components, a corresponding stroke range can be defined over a corresponding temperature range. The temperature for the beginning of Hubentfaltung is specified by the wax components used in each case. Of course, the use of such Wachsdehnelemente is not limited to cooling circuits in motor vehicles, but is for example in other thermostatic valves, such as to find a radiator.
Problematisch bei den bekannten Wachsdehnstoffen ist jedoch, dass für die Phasenumwandlung bei typisch konstanter Temperatur Wärmeenergie benötigt wird, so dass der Schaltvorgang solange dauert wie der hierfür benötigte Wärmefluss. Hierdurch ist insbesondere ein schnelles temperaturabhängiges Schalten/Reagieren nicht oder nur bedingt möglich.The problem with the known wax expanders, however, is that thermal energy is required for the phase transformation at a typically constant temperature, so that the switching process takes as long as the heat flow required for this purpose. As a result, in particular a fast temperature-dependent switching / reacting is not or only partially possible.
Die vorliegende Erfindung beschäftigt sich daher mit dem Problem, einen verbesserten Wachsdehnstoff anzugeben, mittels welchem insbesondere eine Reaktions- und damit Schaltzeit beeinflusst, insbesondere deutlich verkürzt, werden kann.The present invention therefore deals with the problem of providing an improved Wachsdehnstoff, by means of which in particular a reaction and thus switching time influenced, in particular significantly shortened, can be.
Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, einen Wachsdehnstoff zu schaffen, der zumindest zwei Wachskomponenten aufweist, ebenso wie zumindest einen Füllstoff, der aufgrund seiner höheren Wärmeleitfähigkeit eine schnellere Schaltzeit eines mit einem derartigen Wachsdehnstoff ausgestatteten Thermostatventils ermöglicht. Als Füllstoff kann beispielsweise Kupfer, Aluminium, Aluminiumoxid oder Graphit verwendet werden, welche die Temperaturänderungen signifikant beschleunigen und somit eine schnellere und zugleich gleichmäßigere Volumenänderung der Wachskomponenten bewirken, so dass durch eine entsprechende Beimischung eines Füllstoffanteils die Reaktionszeit des erfindungsgemäßen Wachsdehnstoffs signifikant beeinflusst, insbesondere signifikant gesenkt werden kann. Als Graphit kann expandiertes Graphit verwendet werden, ebenso wie jegliche andere Art von Kohlefasern. Expandiertes Graphit beispielsweise ist nicht nur leicht, sondern besitzt auch eine außerordentlich gute thermische Leitfähigkeit, wodurch ein schnelles Ansprechverhalten des Wachsdehnstoffes gewährleistet werden kann. Das expandierte Graphit kann dabei in Form von Graphitpulver oder aber in Form von Fasern vorliegen. Mit der Wahl des Füllstoffs wird die Reaktionszeit des Wachsdehnstoffes beeinflusst. Wichtig bei sämtlichen Wachsdehnstoffvarianten ist, dass der Füllstoff möglichst homogen mit den Wachskomponenten eingebettet und von diesen benetzt ist. Nur hierdurch ist bei einer entsprechenden Temperaturänderung auch eine homogene, das heißt gleichmäßige Volumenänderung und damit ein genaues Steuern des Ventils möglich.The present invention is based on the general idea to provide a Wachsanzehnstoff having at least two wax components, as well as at least one filler which allows due to its higher thermal conductivity a faster switching time of equipped with such a wax expansion thermostatic valve. As a filler, for example, copper, aluminum, aluminum oxide or graphite can be used, which significantly accelerate the temperature changes and thus cause a faster and more uniform volume change of the wax components, so that significantly influenced by a corresponding admixture of a filler content, the reaction time of the wax expansion according to the invention, in particular significantly reduced can be. As graphite expanded graphite can be used, as well as any other type of carbon fibers. Expanded graphite, for example, is not only lightweight, but also has excellent thermal conductivity, which can provide a fast response of the wax wax. The expanded graphite may be in the form of graphite powder or in the form of fibers. The choice of filler influences the reaction time of the wax wax. Important in all wax wax variants is that the filler is embedded as homogeneously as possible with the wax components and wetted by them. Just As a result, with a corresponding change in temperature, a homogeneous, that is to say uniform, volume change and thus precise control of the valve are possible.
Bei einer bevorzugten Weiterbildung der erfindungsgemäßen Lösung weist der Füllstoff beispielsweise Kupfer auf. Kupfer besitzt eine hervorragende Wärmeleitfähigkeit, die oberhalb der Wärmeleitfähigkeit von Aluminiumoxid und dessen Wärmeausdehnungskoeffizienten unterhalb des Wärmeausdehnungskoeffizienten von Aluminium liegt. Selbstverständlich ist dabei nicht nur die Beimischung der genannten Metalle denkbar, sondern auch anderer Metalle mit wiederum unterschiedlichen Wärmeausdehnungskoeffizienten, wodurch je nach beigemischtem Füllstoff die Reaktionsgeschwindigkeit des Wachsdehnstoffes beeinflussbar ist. Auch die Menge des jeweils beigemischten Füllstoffes spielt hierbei natürlich eine Rolle.In a preferred development of the solution according to the invention, the filler has copper, for example. Copper has excellent thermal conductivity, which is above the thermal conductivity of aluminum oxide and its thermal expansion coefficient below the coefficient of thermal expansion of aluminum. Of course, not only the admixture of said metals is conceivable, but also other metals in turn with different coefficients of thermal expansion, which depending on the admixed filler, the reaction rate of the Wachsdehnstoffes can be influenced. Of course, the amount of each filler added plays a role in this case.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung enthält der Wachsdehnstoff zwischen 35 bis 55 Gew.-% expandiertes Graphit. Die zwei Wachskomponenten können in jedem beliebigen Verhältnis vorliegen. Die erste Wachskomponente kann kurzkettige Alkane mit einem niedrigen Schmelzpunkt von ca. 40°C aufweisen, wogegen die zweite Wachskomponente langkettige Alkane mit einen hohen Schmelzpunkt von ca. 87 °C aufweist. Durch die individuelle Mischung der verschiedenen Wachskomponenten ist insbesondere der Hubbeginn individuell einstellbar, so dass dieser auf Kundenwunsch hin angepasst werden kann.In an advantageous development of the solution according to the invention, the wax expansion substance contains between 35 and 55% by weight of expanded graphite. The two wax components can be present in any ratio. The first wax component may have short chain alkanes with a low melting point of about 40 ° C, whereas the second wax component has long chain alkanes with a high melting point of about 87 ° C. Due to the individual mixture of the various wax components, in particular the start of stroke is individually adjustable, so that it can be adapted to customer requirements.
Die Erfindung beruht weiter auf dem allgemeinen Gedanken, den zuvor beschriebenen Wachsdehnstoff mittels eines Extrudierverfahrens herzustellen, bei welchem die Komponenten des Wachsdehnstoffes gemischt und zumindest temporär temperiert, insbesondere erwärmt werden. Durch das spezielle Extrudierverfahren, bei welchem die Wachskomponenten und der zumindest eine Füllstoff äußerst wirkungsvoll und homogen miteinander vermischt werden, kann eine knetartige Konsistenz erreicht werden, die sich auch bei längerer Lagerzeit nicht selbstständig entmischt. Durch das spezielle Extrudierverfahren kann ein höherer Füllstoffanteil verarbeitet werden als z.B. beim Dispergierverfahren.The invention is further based on the general idea to produce the previously described Wachsdehnstoff by means of an extrusion process, in which the components of the Wachsdehnstoffes mixed and at least temporarily tempered, in particular heated. By the special extrusion process in which the wax components and the at least one filler are extremely effectively and homogeneously mixed together, a kneading Consistency can be achieved, which does not separate automatically even with prolonged storage time. Due to the special extrusion process, a higher proportion of filler can be processed than, for example, in the dispersion process.
Bei bisher aus dem Stand der Technik bekannten Wachsdehnstoffen waren längere Lagerzeiten mit wenig Füllstoffanteilen aufgrund der stattfindenden Entmischung kritisch. Durch die knetartige Konsistenz des erfindungsgemäßen Wachsdehnstoffes lässt sich dieser auch beispielsweise in gewisse feste Formen pressen, wodurch eine vergleichsweise einfache Handhabung des Wachsdehnstoffes möglich wird. Durch einen gepressten und festen Wachsdehnstoff kann dieser zusätzlich äußerst genau in dafür vorgesehene Volumenräume, beispielsweise in einem Ventil, eingesetzt werden, ohne dass die Ausdehnung behindernde Lufteinschlüsse oder Verschmutzung einer Dichtfläche, wie beispielsweise bei der Verwendung von flüssigen Wachsdehnstoffen, befürchtet werden müssen.Hitherto known from the prior art Wachsdehnstoffen longer storage times were critical with little Füllstoffanteilen due to the segregation taking place. Due to the kneading-like consistency of the wax expansion substance according to the invention, it can also be pressed, for example, into certain solid forms, whereby a comparatively simple handling of the wax expansion substance becomes possible. By means of a pressed and solid wax expansion substance, it can additionally be used very precisely in volume spaces provided for this purpose, for example in a valve, without having to fear the expansion of obstructive air pockets or contamination of a sealing surface, as for example when using liquid wax expanders.
Bei einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens, kann dem Wachsdehnstoff bzw. dem darin verwendeten Füllstoff ein Verstärkerfüllstoff, beispielsweise ein anorganischer sauerstoffsäurehaltiger Verstärkerfüllstoff, zugesetzt werden. Ein derartiger Verstärkerfüllstoff verhindert beispielsweise ein Absetzen des Füllstoffes, insbesondere von Aluminiumoxid, und zwar unabhängig vom Aggregatszustand der Wachskomponenten, wodurch die Homogenität des erfindungsgemäßen Wachsdehnstoffes über die Lebensdauer verbessert werden kann. Eine optimale Homogenität gewährleistet ein späteres optimales Reagieren des Wachsdehnstoffes auf Temperaturänderungen und ein kalkulierbares Schaltverhalten eines damit ausgestatteten Thermostatventils.In an advantageous development of the process according to the invention, a reinforcing filler, for example an inorganic oxygen-containing reinforcing filler, can be added to the wax wax or to the filler used therein. Such a reinforcing filler, for example, prevents settling of the filler, in particular of aluminum oxide, regardless of the state of aggregation of the wax components, whereby the homogeneity of the wax expansion agent according to the invention over the life can be improved. Optimum homogeneity ensures a later optimal reaction of the wax expansion agent to changes in temperature and a calculable switching behavior of a thermostatic valve equipped therewith.
Claims (9)
dadurch gekennzeichnet, dass
der Füllstoff Graphit, insbesondere expandiertes Graphit, Kohlenstofffasern, Aluminium, Aluminiumoxid und/oder Kupfer aufweist.Wax expander according to claim 1,
characterized in that
the filler comprises graphite, in particular expanded graphite, carbon fibers, aluminum, aluminum oxide and / or copper.
dadurch gekennzeichnet, dass
der Wachsdehnstoff zwischen 35 bis 55 Gew.-% Füllstoff, insbesondere, und mindestens zwei Wachskomponenten enthält.Wax expander according to claim 1 or 2,
characterized in that
the wax wax contains between 35 to 55% by weight of filler, in particular, and at least two wax components.
dadurch gekennzeichnet, dass
der Wachsdehnstoff zwischen 35 bis 55 Gew.-% Füllstoff, insbesondere Graphit enthält, zwischen 5 bis 20 Gew.-% der ersten Wachskomponente und zwischen 25 bis 60 Gew.-% der zweiten Wachskomponente enthält.Wax expander according to claim 1 or 2,
characterized in that
the wax wax contains between 35 to 55% by weight of filler, in particular graphite, between 5 to 20% by weight of the first wax component and between 25 to 60% by weight of the second wax component.
dadurch gekennzeichnet, dass
die zumindest eine Wachskomponente kurzkettige Alkane mit einem niedrigen Schmelzpunkt und eine Wachskomponente langkettige Alkane mit einen hohen Schmelzpunkt aufweist.Wax expander according to one of the preceding claims,
characterized in that
the at least one wax component short chain alkanes having a low melting point and a wax component long chain alkanes having a high melting point.
dadurch gekennzeichnet, dass
der Wachsdehnstoff und/oder der Füllstoff einen Verstärkerfüllstoff, beispielsweise einen anorganischen sauerstoffsäurehaltigen Verstärkerfüllstoff, aufweist.Wax expander according to one of the preceding claims,
characterized in that
the wax-expanding agent and / or the filler comprises a reinforcing filler, for example an inorganic oxygen-acid-containing reinforcing filler.
dadurch gekennzeichnet,
dass als Füllstoff Graphit, insbesondere expandiertes Graphit, Kohlefasern, Aluminium, Aluminiumoxid und/oder Kupfer verwendet wird.Method according to claim 6,
characterized,
in that graphite, in particular expanded graphite, carbon fibers, aluminum, aluminum oxide and / or copper is used as the filler.
dadurch gekennzeichnet,
dass die Poren des Füllstoffs während des Mischens und Extrudierens zumindest teilweise gefüllt werden.Method according to one of claims 6 to 8,
characterized,
that the pores of the filler are at least partially filled during mixing and extrusion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014208355.9A DE102014208355A1 (en) | 2014-05-05 | 2014-05-05 | Wachsdehnstoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2942371A1 true EP2942371A1 (en) | 2015-11-11 |
Family
ID=53180530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15165758.2A Withdrawn EP2942371A1 (en) | 2014-05-05 | 2015-04-29 | Wax expansion material |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2942371A1 (en) |
| DE (1) | DE102014208355A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302560A (en) * | 2019-04-19 | 2021-08-24 | 日油株式会社 | Wax swelling agent and wax composition containing the same |
| CN115279827A (en) * | 2020-03-18 | 2022-11-01 | 高仪股份公司 | Expanded material assembly for thermostatic mixing valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020113749A1 (en) | 2020-05-20 | 2021-11-25 | Stabilus Gmbh | Gas pressure spring with an expansion wax, drive system with the gas pressure spring |
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| WO1998048333A1 (en) * | 1997-04-22 | 1998-10-29 | Standard-Thompson Corporation | Expansion composition |
| WO2003085474A1 (en) * | 2002-04-04 | 2003-10-16 | Newfrey Llc | Faucet with internal thermostatic tempering device |
| US6652705B1 (en) * | 2000-05-18 | 2003-11-25 | Power Devices, Inc. | Graphitic allotrope interface composition and method of fabricating the same |
| US6764020B1 (en) * | 2003-02-28 | 2004-07-20 | Standard-Thomson Corporation | Thermostat apparatus for use with temperature control system |
| EP1475685A2 (en) * | 2003-05-09 | 2004-11-10 | Behr Thermot-tronik GmbH | Thermostatic actuator |
| US20050242311A1 (en) * | 2004-04-29 | 2005-11-03 | Behr Thermot-Tronik Gmbh | Expansion element |
| GB2416823A (en) * | 2004-07-29 | 2006-02-08 | Reliance Water Controls Ltd | Mixing valve |
| US7148285B2 (en) * | 2001-05-11 | 2006-12-12 | Cabot Corporation | Coated carbon black pellets and methods of making same |
| EP2362095A2 (en) * | 2010-02-18 | 2011-08-31 | Gustav Wahler GmbH u. Co.KG | Method for producing a thermostatic work element and thermostatic work element |
-
2014
- 2014-05-05 DE DE102014208355.9A patent/DE102014208355A1/en not_active Ceased
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2015
- 2015-04-29 EP EP15165758.2A patent/EP2942371A1/en not_active Withdrawn
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| GB629158A (en) * | 1946-01-10 | 1949-09-13 | Vernay Patents Company | Improvements in or relating to diaphragm blanks, particularly for use as closure seating members for fluid pressure type thermostats |
| WO1997015630A1 (en) * | 1995-10-23 | 1997-05-01 | Hoechst Celanese Corporation | High thermal conductivity waxes and polymers |
| WO1998048333A1 (en) * | 1997-04-22 | 1998-10-29 | Standard-Thompson Corporation | Expansion composition |
| US6652705B1 (en) * | 2000-05-18 | 2003-11-25 | Power Devices, Inc. | Graphitic allotrope interface composition and method of fabricating the same |
| US7148285B2 (en) * | 2001-05-11 | 2006-12-12 | Cabot Corporation | Coated carbon black pellets and methods of making same |
| WO2003085474A1 (en) * | 2002-04-04 | 2003-10-16 | Newfrey Llc | Faucet with internal thermostatic tempering device |
| US6764020B1 (en) * | 2003-02-28 | 2004-07-20 | Standard-Thomson Corporation | Thermostat apparatus for use with temperature control system |
| EP1475685A2 (en) * | 2003-05-09 | 2004-11-10 | Behr Thermot-tronik GmbH | Thermostatic actuator |
| US20050242311A1 (en) * | 2004-04-29 | 2005-11-03 | Behr Thermot-Tronik Gmbh | Expansion element |
| GB2416823A (en) * | 2004-07-29 | 2006-02-08 | Reliance Water Controls Ltd | Mixing valve |
| EP2362095A2 (en) * | 2010-02-18 | 2011-08-31 | Gustav Wahler GmbH u. Co.KG | Method for producing a thermostatic work element and thermostatic work element |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302560A (en) * | 2019-04-19 | 2021-08-24 | 日油株式会社 | Wax swelling agent and wax composition containing the same |
| CN113302560B (en) * | 2019-04-19 | 2024-03-26 | 日油株式会社 | Wax expanding agent and wax composition containing the same |
| CN115279827A (en) * | 2020-03-18 | 2022-11-01 | 高仪股份公司 | Expanded material assembly for thermostatic mixing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014208355A1 (en) | 2015-11-05 |
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